Pregnancy due date and conception date

Common Questions and Answers about Pregnancy due date and conception date

pregnant

So once it calculates that it gives me a whole different duedateanddate I conceived. Now I tried by putting my due date and it tells me a different day I conceived and my correct weeks of pregnancy. So idk if to go based off the due date. Has anyone had this problem? Thank you.

If you got your due date from an early ultrasound, you probably got pregnant from the sex on the 26th. But if you just got the due date from a calendar, or from ultrasounds later in the pregnancy, then there is no way to know which event produced the baby. If it is question of paternity, a DNA test will show what you need to know.

I'm really confused on when I got pregnant my duedate is May 27th and my dr and ultra sound tech said I got pegnant the first week of September but when I looked on the calander myself it said I got pregnant around August 20th so why am I getting two diff conception dates I would think my dr and ultrasound tech know what they are talking about but it just confused me as to why I got a diff date then them so I was wandering if anyone else is due around the same time as me and when you conceived

I am uncertain when I had my last period and my periods are erratic. With the US andduedate, is there any way I could have conceived before the 23 rd or 24th? How accurate are US? Doctor told me the earlier the US the more accurate it will be.

I also slept with my boyfriend the ebd of Feb of 2007, and again in March between the time of 16th -19th.I had an ultrasound in May of 2007 that said i was 8 weeks pregnant with a duedate of Dec 10, 2007. I want to know if i could have gotten pregnant in Jan or if it is my boyfriends baby. Please help me to get some relief.

Idk if you did an ultrasound yet or was giving a due date but from my calculations you should be due around August 6. If it was the 2nd dude your duedate would be around August 20th. I hope this information was helpful..good luck!

June 14 (40 weeks)
Given that your duedate came from a 12th week ultrasound, and even if we use the slight discrepancy with the date of your period to assume it might be a few days off (to be expected when the margin for error is 7 days) I'd say you did not get pregnant any earlier than September 17.

But she measured the baby on the ultrasound from romp to crown. Estimated duedate is 10/6/15. My question is I couldn't have conceived December 12 right? Because I was thinking if I did the first ultrasound would have detected a baby and would be much bigger than just a sac. And I would be further along right? Another question is my doctor dating pregnancy by my last period? Thanks!!!

Hi I'm just trying to figure out a slight problem okay so I have irregular periods I think my last period was may 1st because that's when I stopped bleeding I had sex may 2nd with my ex no protection but he said he pulled out and then 2 days later I bleed heavy and it stopped around may 5 then on the 7th I had sex with my new boyfriend he ejaculated in me then on may 9th I had sex with me ex again he pulled out and after that I had sec may 10 11 12 13 14 15 with my boyfriend after that nobody el

I Didn't Ovulate Till November 2 Though So My Conception Wasn't Until November 2 But The Way They Date A Pregnancy Is The First day Of Your Last Period Or Cycle. So That Put My Due Date At July 25. Even Tho She Was 2 Weeks Late... I Know For A Fact That My Due Dater Wasn't Off Because I Was Tracking My Period. So For You When Did Your Period Start ? In February? Even Tho Your Conception Date Is March They Always Date It To Your Period Starting Even Though You obviously Weren't Pregnant Then.

okay so im just trying to figure out my conceptiondate for fun... my last period was august 11th 09. my first ultrasound was september 29th which said i was 5 weeks and 1 day (almost 2 weeks less than what i was supposed to be). but according to the subsequent ultraounds and the fact that my due date is may 27th i would have been 5 weeks 6 days. is the first ultrasound the most accurate?? when did i conceive?

I took a pregnancy test the May 22 it was Positive. I had a ultrasound today June 5th and they dated my conceptiondate March 24th with a due date of Dec 15 how is this possible and how accurate is this? I've never had this happen to me?

You can count back on a calendar 266 days from that date to get to an estimated date of conception.
If you get an ultrasound and the doctor or the tech says "You're 7 weeks pregnant," just keep in mind he or she is not saying you are 7 weeks from conception. All medical counts begin on the first day of the last period, or the imputed first day of the last period if the woman doesn't know when it is or has irregular cycles.

My pregnancy wheel using the original duedate of January 12, gives a conception date of april 21 with a last menses of apirl 7th. Semen does not live that long inside of you; 5 days at the most under ideal conditions. It's the second guys baby. Ultrasounds before 8-10 weeks are very reliable for dating, within a few days.

on may 17th i found out i was pregnant, and the same day i had an ultrasound that was stating i was 6 weeks and 3 days pregnant and the duedate was january 7th ,2013.
the other ultrasounds i had were stating that my duedate was on january 10th, ( morphologic ultrasound i had at 20 weeks, and a 3d one that i had at 25 weeks)
i need to know when i have conceived. my doctor says sometimes around april 16th.

Right but I just don't understand how those two different conception dates come up with the same weeks and days that I'm along and the same duedate if they're different conception dates. Wouldn't the feb 16th conceptiondate put me farther along? I don't know how this works cause this is my first pregnancy. Thanks for answering my question again :) I posted another question about weight gain if you want to take a peek at it.

Well your duedate is pretty much the same as mine,,,,,,,,,,,,I've been given 3 dates 22nd, 24th and 25th September but I'm going with the 24th because I know I conceived on Jan 1st.........you would have to have conceived around the same time as me to be 32 weeks Monday.........I can promise you this baby is your boyfriends!!
Yes you would have missed Oct, Nov and Decembers periods to have got pregnant in the September.........

My doc hasn't told me my conception date. Online due-date calculators say it'll be on the 5th of March (coincidentally the day I got married!) and I still can't figure out what my conception date is and how far along am I!

My lmp was the 23rd December ( duedate 29 sept) and I ovulated on the 5th January so concieved a few days either side of that date.
If you had concieved December 12-20 you wouldn't have got your period the end of December.
You should bring up your concerns with your doctor though. they will be able to tell you the halflife of the drug you were taking ( how long it stays in your system) and what the probability of it causing any effects on the baby would be.

so my question is...... my duedate has been anywhere between the beggining of february and the end. and my depo threw off the calender cause my period varies. which do you think?
DID I GET PREGNANT THE BEGGINING OF MAY OR THE END OF MAY??
AS IN HE WAS BEFORE AND ON THE 1OTH AND THE NEW GUY WAS ON THE 26TH.
PLEASE GIVE ME ADVISE OR HELP OR ATLEAST YOUR OPPINION.
I AM STILL DOING A PATERNITY TEST IN THE END. JUST NEED PIECE OF MIND.

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